Post on 21-Sep-2020
IRS
N/F
RM
-296
ind
5
The national occupationaldoses registry in France : SISERI
ORPNET webinar17th of decembre 2019
Juliette FEUARDENT
IRSN, France
2 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
ContentsI. Objectives of the national occupational doses
registry SISERI
II. Wich workers ?
III. Which type of data ?
IV. Which actors ?
V. Wich use of the registered data ?
3 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
I. Objectives of national dose registry in France
▌They are set in the French regulation
▌To centralize, to consolidate and to store all dosimetric results of the individual monitoring of each worker exposed to ionising radiation in order to constitute the national register of individual occupational doses with 3 major purposes : To control individual occupational exposures and to check the respect of
dose limits To optimize radiation protection of workers To produce statistics of occupational exposure and data for epidemiological
studies
▌ Give access to the data to control agents, occupational physicians, radiation protection experts and officers and workers, according to the rules defined by the legislation
▌ Implemented in 2005, the information system for occupational dosimetry registration (SISERI) was developed at the request of the Ministry of Labour(authority) and its management was entrusted to IRSN (TSO)
4 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
II. Which workers ?
▌Categories A and B workers (and non classified workers being monitored)
▌Employees and others whatever their employment status
Permanent workers
Outside workers
Temporary workers
Trainers,…
▌ Some crossboarder workers
▌Activity fields: medical and veterinary activities, nuclear field,
industrial field, research and education, aircrew, NORM activities,
workers exposed to radon.
5 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
Number of monitored workers in 2018 (external dosimetry)
▌ 390 363 workers
1 ND = undetermined activities2 Others = crisis management, control activities, …
Civilian and military activities using artificial sources of ionisingradiation (365 980)
Natural radioactivity
Medical221 875
57 %
Nuclear86 70222 %
Industry15 722
4 %
Aircrew23 356
6 %
Researchand
education12 414
3 %
ND1
20 0275 %
Others2
9 1903 %
6 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
III. Which data?
▌III.1 Administrativ data
▌III.2 Dosimetric data
▌III.3 Status of data
7 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
III.1 Administrativ data
▌Worker’s identification
▌Employer’s identification
▌Context of exposure:
Activity field and activity sector, according to the national classification
Occupation
Status of employment
Work duration
8 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
III.2 Dosimetric data (1/2)
▌EXTERNAL DOSIMETRY
▌External passive dosimetry results
Whole body (Hp 10, X+g, neutrons) + corresponding Hp 0.07 (mSv)
Extremities (Hp 0.07, X+g, neutrons, wrist or finger) (mSv)
Eye lens (Hp 3)
Period (quaterly or monthly)
▌ For each operation in a controlled area: external operational dosimetry
results
Whole body (Hp 10, X+g, neutrons) + corresponding Hp 0.07 (mSv)
Transmission to SISERI is mandatory only for activities in nuclear facilities
9 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
III.2 Dosimetric data (2/2)▌ INTERNAL EXPOSURE SURVEILLANCE
Results of radioactivity measurement of each radionuclide targeted in
vivo or in vitro in biological samples (Bq)
Results of committed effective dose assessment performed by the
occupational physician when a contamination has been found (mSv)
▌AIRCREW DOSES
Calculated from each flight dose value (SIEVERT-PN system) (mSv)
▌DOSES RESULTING FROM INDIVIDUAL MONITORING OF OCCUPATIONAL
EXPOSURE TO RADON (mSv)
10 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
Regstered data: evolution over the time
Annual dose Results per period (monthly, quarterly)
Passiv doses: global then distinction btw photons and neutrons
Operational doses
Aircrew doses
Internalexp. Activity and doses
Population =1,6.106 travailleurs
2019
11 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
III.3 Status of personal data
▌ External dosimetry results and administrative data: sensitiv data
▌ Internal exposure surveillance data: medical data
Specific procedure of securisation consisting in:
Declaration of employers in the system (numericaly signed
protocol)
Declaration by the employer of persons having an access for its
monitored workers (occupational physician, RPO and RPE)
High authentification level (personal numerical certificat instead
of login/password)
12 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
IV. Which actors ?
Tran
smis
sion
Rest
itut
ion
-Con
sult
atio
n
Control agent
Employer
Administrativdata
Dosimetricdata
Passiv dosesInternal exposureAircrew doses
Operational doses
RPO, RPEAccredited service
National dose register=
SISERI information system
RPO, RPE Occupationaldoctor
Employer
13 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
▌Administrativ data (worker’s identification,
context of exposure: occupation,…) are sent
by the employer
▌Dosimetric data (excepted operational
doses) are sent by:
7 passiv dosimetry services 15 medical laboratories or occupational
health services accredited for in vitro or in vivo assessment of internal exposure SIEVERT-PN (aircrew doses)
IV.1 Data transmission
14 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
IV.2 Data consultation
External dosimetry Internal dosimetry
Worker Dosimetry results over professional life on (e-)mail demand (no web access)
Occupationaldoctor
Web access over the last 48 months (including global life occupationaldose), detailed results over professional life on (e-)mail demand
RPO, RPE Web access over the last 24 months
Control agent Web access over the last 24 months
Researchinstitut
Only agregated data
15 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
V. Which use of the registered data?▌V.1 Management of overexposure
▌V.2 Production of statistics
▌V.3 Epidemiological studies
▌V.4 Other use
16 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
V.1 Management of overexposure▌The dosimetry servic sends an alerte to the occupational doctor, the employer and IRSN
▌The occupational doctor investigates to determine if the dose was or not received by the worker
▌The occupational doctor only has the possibilityto modify the dose
▌The conclusion of investigation has to be sent to IRSN so that the national registry is kept up to date, by the way of a paper questionnaire:
17 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
V.2 Production of statistics▌IRSN is in charge of the annual report on occupational exposure in France
▌The data for external exposure is directly extractedfrom the national register
▌This report is sent to national autorities and alsopublished on the web (in French)
▌ This report’s data are alsoregistered on ESOREX-platformand used to answer UNSCEAR’scollection for global survey
https://esorex-platform.org/
18 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
V.3 Epidemiologcal studies
▌Access to agregated data extracted from the national dose register
▌Access to IRSN’s epidemiologist or to researchers from otherinstituts
▌Different populations of workers have been or are focused on:
Nuclear workers (permanent, contractors) Medical staff Aircrew …
19 SISERI, French national dose registry – ORPNET Webinar, 17th of decembre 2019
V.4 Other use
▌Data extraction and analyse for/by IRSN RP extperts
Authorization’s instruction for one specific facility
Specific studies on relevent RP topics
Extremity dosimetry in interventional radiology Occupational exposure in gammagraphy …
▌Data extraction and analyse for French autorities